Imagine trying to swim upstream against a powerful current. Exhausting, right? In the microscopic world of biology, cells face a similar challenge every second. They constantly need to move molecules from areas of to areas of high concentration (the "upstream" direction).
This process is often called and is divided into two subtypes based on the direction of movement: 3 types of active transport
This type is clever because it doesn't use ATP directly. Instead, it uses the created by primary active transport. Imagine trying to swim upstream against a powerful current
Secondary active transport is a bit more "resourceful." Instead of using ATP directly, it hitches a ride on the energy stored in an electrochemical gradient created by primary active transport. 3 types of active transport